Gas-engine.



Patented sept. u, |900.

No. 657,8lo.

W. E. CARY.

GAS EN (Application filed July 8, 1899.*

GINE.

2 Sheets-Sheet l.

(No Model.)

Patented Sept. Il, |900.

W. E. CARY. GAS ENGINE.

(Application led July 8, 1899.)

2 Sheets-.Sheet 2.-

nire

' iWILLIAM CARY, 0F SPRINGFIELD, VERMONT eneeneinr.

SPECIFICATION forming port of Letters Patent No. 657,810, dated September'l 1, 1.900.

A Application filed July 8, 1899. Serial No. 723,162. (No model.) l.

` To @ZZ whom it may concern."

13e it known that I, WILLJ'IAM E. CARY, of Springfield, in the county of Windsor and State of Vermont, have invented a. new and improved Gas1Engine, of which the following lar'ignitioi. of the explosive charge at the proper time. I

The i uren tion. consists of novel features and parte and combinations of the same, es will be fully described hereinafter and then pointed out in the claims.

.A prnctical embodiment of myinvention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate correspondiner parte in all the views.

-Figure l is an end elevation of the improvenient.l Fig. 2 is a transverse section of part of the saine on the line 2 2 in Fig. 3. Fig. 3 is n sectional side elevation of the improvement on line 3 3 in Fig. l. Fig, is an enlarged sectional side elevation of the charge-f controlling valve and igniter. Fig. 5 is a transverse section of the seme on the line 5 5 in Fig. e. Eig. t is asimilar view of the same on the line 6 6 in Fig. 4, and Fig. i? is an enlarged sectional side elevation of the governor- 'controlled inletvalve The iinproved'gasengine is provided with n treme or casing A, having a bese A on which is hinged at A2 n section A3, fastened to the bese by bolts A, asis plainly indicated in l. On the top of the section AS ere bolted the hearings Af' and a een A6, and in the oase A and the section A3 is journsled the mein shaft B, one half of the bearings for shaft being in the section A. and the other bali in the section A3, so that when the letter is swung into an open position ready` access is had to the shaft.'

@n the shaft B, within the casing A,is formed vided with trunnions 'E'- E, journaled in the bearing-'section As of the casing. The'trunnien E is solid, and the trunnion E? is made hollow to connect at its inner end with a chan nel E3, formed on one side of the cylinder and leading to the upper end of the cylinder, at

the working end thereof. lThe outer end of the hollow trunnion E2 connects by an aperture A7 in the section A5 with the interior of a valve-chamber F, bolted or otherwise -fastened to the side of the casing A. A rotary valve G operates in the chamber F to control v au inlet-port a, leading to a supply-pipe Il, connectedwith a suitable source of motiveagent supply and containing a. three way valvel, controlled by a. governor J on the stem G' of the valve G.

The. stem G is driven from `the main shaft B and is for this purpose provided with a sprocket wheel -K, over which passes a sprocket chain K', alsopassing over a y sprocket wheel K2, secured on the shaft B adjacent to the iiy-Wheel B2. The sprocket- .1

Wheels K2 and K2 are so proportioned (hat it' requires two revolutions of the. shaft B to make one revolution of the stem G' and the Valve G. The chamber F is also provided with an exhaust-port b,lending to an exhaust` pipe H' for carrying off the products of oombustion, and the two portsct andb are adopted to alternately register with a corresponding port l'. formed in thevalve G, asis plainly in` dicated in Figs. 4 and (i. i

In thc chamber l" is arranged ,an electric ignition' device comprising a fixed electrode L and an electrode U, moving with the vn-lre G in and out of contact with the ixed clcctrede L to make n-sprk at the proper time forigniting the explosive chnrge in thc channber Fat the time the ports a and b are closed, and the charge is compressed: ou thc return or upward stroke ol' the piston D when the latter is about in position to make its down stroke. The fixed electrode L is contient-.ed

by a Wire N with a battery or other suitable source of electricity, and the electrode ll has a shank L2 extending centrally through thc stem G to connect at its outer end by a 4wire N' with the battery or other source of electricity. The 'slmnkA L2 is coyercd with an in# suletingeleeve L', as shown.

The throttle or inlet valve l is prefer'alil in the form of athree-way valve', at' shown in, Fig. 7, and has its valve-stem I' provided with a spring-pressed arm 1"', normally resting on a fixed lug I* and adapted to receive 5 aswinging motion from the governor J to open or close the valve more or less, according to the speed of the lengine. If the engine attains too high aspeed, the valve connects with the outef airl instead of the supply, so

1o that no explosive charge is passed into the chamber F and the cylinder until the speed of the engine is reduced.

. The governor J is provided 'with a disk J', fixed or formed on the wheel K er on the valvesteni G", and connected by spring-arms J with a disk J, mounted to turn with and to .slide longitudinallyon the said stem G'. The spring-arms J are provided with the usual weights or balls J,moving outward on zo an increase of speed of the engine to draw 'the'rdisk Js toward the other disk J', thel spring-arms hy their own resiliency moving the disk J3 in a reverse direction away from the disk J' ons decrease. of speed of the engine. On the movable disk J is secured or formed a cam J5, normally standing at one 'side of the arm I', but adapted to move into the-path-of said arm on an increase of speed of the'engine to impart a swinging motion to 3'9 the aim P to turn the stem I and theplug I 'gf thethrottle-valve I and cutot the supply of the motive agent accordingly, asabove explained. 'Illie position of the arm I* ou the Astem I' maybe varied relative to the portsin' the plug l" (see Fig. 7) and the speed of the engine 4varied while running. In order to `ary .the point at which the governor will act on the arin lthe lnut on the valve-stem I'` is screwed up or u'nscrewed, so as tobringnzhe 4o arm II nearer to or farther away. from the cam J 5." Hence when this is done thecam will 'havetoreach a different point to afect the three-way valvej, and the speed 'of the engine will reach a different point before the governor lwill act to close or open theI valve I.

The-operation is as follows: When the pis ton D is on' thc first downstroke, the ports c and ci; arein register vwith cach other to allow the piston to drawan explosive chargefrom the pipe H,thr'o'i`i'gh t-he registering ports into the lchamber F, and into the cylinder E by way of the hollow trunnion E, the opening A7, and the channel E3. When the piston is on the. return stroke, the ports a and c are disconnected, and consequentlythe charge previously drawn into the cylinder is coinpressed, and on the'complction of the return stroke the electrode L' passes the ixed-lelectrede L toproduce the usual spark to ignite the-charge and givean impulse-to the piston .lJ` on'the second downstroke. spsiroke of the piston D the port c registers Witliithc port b, so that the products of combustion are discharged. 0n the next iiownward'stroke a fresh'chargo is drawn in and the above-described. operation is repeated.

In ordcrto increase tho power of the engine On the next and kes 'the cylinder E cool without'a water-jack I prefer tospr'ay a charge of water into the charger-while passing through the inlet-pipe to the chamber F and which charge of water is instantly vapor-ized, and the compression and intense heat of comlms tion causes a decomposing' of the vapor to consume the gases and give a great increase of pressure to the piston D after the gaseous neet with the throttle-valve I by a pipe YV a water tank W and connect a water-'nozzle Wz and pipe W, leading from a carburetor, with said pipe W. W designates a valve. The vaporizing of the water absorbs the heat of the cylinder and keeps it cool, and the engine develops a great deal more power than it would without the charge of water.

From the foregoing it is evident that the ment of valves-and stopped by simply switching olf the 'current to the electrodes L L', thereby elimina'tingall lire-risk', especixlly as the gasolene-tank for furnishing the explosive mixture to the pipe H may be placed hny distance away from the engine proper, and only one charge of lair and.gasolene is taken into the chamber at a time.

Havingjhus fully described my invention, I claim as new and desire to secure by Letters Patentchamber and a supply-pipe, a rotary val ve for controlling the admission of the motive agent from the supplypip'e to the valve-chamber, a throttle-valve in the supply-pipe, a springpressed arm heldI by one -end on thestcni of .the throttle-valve and having its other endfree, means for adjusting said arm along the th rattle-valve stem f.. governor comprising two disks on the rotary valvesten1,one of said disks being fixed on the stem and the other mounted. to slide on and turn with said "stein, weightearrying springs con neeting said disks, anda cam on the slidahle disk, said 'cam being normally out of engagement with the arm on the throttle-valve stem and engaging-.the free end of said arm to swing the same when the slidable disk inovetivai'd the other disk, las set forth. v

E2;-V In' a gas-engine provided with a "alvechamber and supplvepipc, a rotary valve for con trolling the admission of the motive agent from the supply-pipe to the valve-chamber, a throttle-valve in thc supply-pipe, a spring-- pressed arm having'one end on the stem ol' said th rottle-valve, a governor on the stom of the rotary valve 'and havinga slidablediskformed with a cam adapted to engage said arm to swing the same whereby to close the -throtixle-valve-when the disk is slid, and'ineans will have to reach dilercnt poi nts-to engage with sald arm, asand for the pnrpososct forth. In a gas-engine, a 'casing havinga'valve chamber and vsupply-'pipo connect-n1' l: thereto charge is ignited. For this purpose I c'onengine can be. started without any adjust- 1 In a gas-eugine provided with a valvel for holding said arm atdi'icrcnt points on the s stem of the throttle-valve whereby the disk 'a hollow rotary Valve-steth opled with the engine-shaft and carrying a valve for controlling the admission and exhaust of t-he motive agent, a. stationary electrode in the valveohamher, a movable electrode having a shank inserted through the hollow valve-stem, a disk xed on said shaft and ediskslidable thereon, .ball errying spring-arms connecting said disks, a'vcam on the slidable disk, and a throt- 'ole-valve whose plug has a. Spring-pressedro swinging arm secured thereto and 4adapted to be engaged by said com, as set forth.

' WHA- .1 AM. E. CARY.

Witnesses:

FANNY E. Emmen,-

CABRIE J. CARY. 

